Celine Dion performs during a rehearsal for her new show in The Colosseum at Caesars Palace in Las Vegas. The singer returned to the Las Vegas Strip with a revamped show ins 2015. Steve Marcus, for USA TODAY

Celine Dion greets fans upon her arrival at Caesars Palace in Las Vegas on Feb. 16, 2011, to prepare for the March debut of her three-year engagement at The Colosseum at Caesars. The five-time Grammy winner arrived with her husband René Angélil, son René-Charles, and twins Eddy and Nelson. BRIAN JONES, AFP/Getty Images

She's all smiles before performing at a preview of her new show at Caesars Palace. Dion, the biggest cash cow on the Vegas circuit, returns to Caesar's Palace, where she did five years of sold-out shows before leaving for a yearlong world tour and a year of family time. Robert Hanashiro, USA TODAY

Celine Dion and her mother Therese Dion arrive for the 79th annual Academy Awards. The youngest of 14 siblings, she won numerous awards and recorded nine French albums by age 18. Dan MacMedan, USA TODAY

Celine Dion waves to fans at Caesars Palace, on Sept. 1, 2005. Before the dedication of the hotel's new Augustus Tower. Dion pledged $1 million to the relief fund for victims of Hurricane Katrina. JOE CAVARETTA, AP

After the struggle of infertility, Celine Dion and husband Rene Angelil celebrate their son Rene-Charles prior to a baptism ceremony in Montreal's Notre Dame Basilica on July 25, 2001. ANDRE FORGET, CP

Together since her teens, Celine Dion, and her manager/producer René Angélil are seen in Paris, on July, 10, 1982, with lyricist Eddy Marnay, left, and her mother Therese Dion, far right. MAZEAU JEAN MARIE/SIPA